Leaders of Romania, Serbia, Greece, Bulgaria meet for economic cooperation

Serbian President Aleksandar Vucic attends a joint press conference with leaders of Romania, Bulgaria and Greece, at Victoria Palace in Bucharest, Romania, April 24, 2018. The leaders of Romania, Bulgaria, Greece and Serbia met here on Tuesday, discussing economic cooperation, concrete projects and the 16+1 cooperation format promoted by China. (Xinhua/Cristian Cristel)